Tools
418
Managed Switches
down the port, the port is placed in the D-Disable state. If autorecovery is enabled, the
port comes back up after the time-out interval expires.
• Dynamic ARP inspection. If dynamic ARP inspection (DAI) is enabled and the threshold
value is reached, the interface is placed in the D-Disable state. If autorecovery is enabled,
the interface comes back up after the time-out interval expires.
• DHCP rate limiting. If DHCP snooping is enabled and the incoming DHCP packet rate
exceeds the threshold, the interface is placed in the D-Disable state. If autorecovery is
enabled, the interface comes back up after the time-out interval expires.
• UDLD. If Unidirectional Link Detection (UDLD) is enabled and the unidirectional
connection is detected, the interface is placed in the D-Disable state. If autorecovery is
enabled, the interface comes back up after the time-out interval expires.
The following example shows how you can configure autorecovery for UDLD, change the
time-out interval for autorecovery, and show the status of autorecovery for all features:
1. Enable autorecovery for UDLD.
2. Change the time-out interval for autorecovery.
3. Display the status of autorecovery for all features.
(Netgear Switch) #config
(Netgear Switch) (Config)#errdisable recovery cause udld
(Netgear Switch) #config
(Netgear Switch) (Config) #errdisable recovery interval 30
(Netgear Switch) #show errdisable recovery
Errdisable Reason Auto-recovery Status
------------------ ---------------------
dhcp-rate-limit Enabled
arp-inspection Enabled
udld Enabled
bcast-storm Enabled
mcast-storm Enabled
ucast-storm Enabled
bpduguard Enabled
bpdustorm Enabled
keepalive Enabled
Port MAC Locking Enabled
Denial Of Service Enabled
Timeout for Auto-recovery from D-Disable state 30
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